OpenAI Codex
Subscription
OpenAI's coding agent for the CLI, IDE extension, desktop app, web and iOS, included with ChatGPT plans or usable pay-as-you-go with an API key.
Pricing
Starting price $20/mo
Pricing model Subscription
Included with ChatGPT: Go $8/mo (desktop app only); Plus $20/mo (CLI, IDE, web, iOS); Pro from $100/mo; Business $25/user/mo; or API key at API rates
Free Tier
ChatGPT Free includes Codex desktop with GPT-6 Luna, usage-limited
Resets regularly
Capabilities
AI Chat
Image Generation
Video Generation
Music Generation
Audio & Voice
Mobile App
API Access
Commercial Use
Available Models 4
Available Models (4)
Language Models
| Model | Creator | Params | Context | Status |
|---|---|---|---|---|
| GPT-6 Astra Plus and above; lowest limits | OpenAI | — | — | |
| GPT-6 Luna Only model on Free and Go | OpenAI | — | 1.1M | |
| GPT-6 Sol Plus and above | OpenAI | — | 1.1M | |
| GPT-6.1 Sol Plus and above | OpenAI | — | 1.1M |